Power cuts and voltage spikes are hard on routers, NVRs, servers and PCs. A UPS (uninterruptible power supply) gives you time to save work and shut down safely, and a line-interactive or online UPS also smooths out voltage swings.
Size it by adding up the wattage of what you’ll connect, then leave some headroom. Remember that UPS batteries wear out, most need replacing every few years.
Which equipment do you keep on a UPS at home or work?
